Description Volquartsen VC3RS Recoil Rod Replacement Spring STANDARD for Ruger Mark IV 1, 2, 3 and ALL 22/45 and LITE SILVER VC3RSO-S Replacement Spring for the VC3RS Kit OR If you know what you are doing you can replace your spring on your factory Ruger KA-57 Assembly SILVER Standard Weight is a direct replacement for the Ruger KA-57 recoil assembly. (I think it’s actually lighter though from my testing) Model # VC3RSO-S UPC # 810162018672
